Ad specs / Facebook
Facebook Reels video ad size
A Facebook Reels video ad is 9:16 at 1440 × 2560 pixels, an MP4, MOV or GIF up to 4 GB, and Meta's page sets no maximum length. Primary text is 40 characters and the headline 55, both recommendations. Leave the top 14%, the bottom 35% and 6% of each side clear, plus the bottom 40% of the right-hand 21%.
| File type | MP4, MOV or GIF |
|---|---|
| Recommended resolution | 1440 × 2560 pixels |
| Aspect ratio | 9:16 |
| Duration | No maximum limit |
| Maximum file size | 4 GB |
| Primary text | 40 characters (recommended) |
| Headline | 55 characters (recommended) |
| Encoding | H.264 compression, square pixels, fixed frame rate, progressive scan, stereo AAC audio at 128kbps+; no edit lists or special boxes in the file container |
| Captions and sound | Captions optional, but recommended; sound optional, but strongly recommended; no auto captioning |
| Compared with Instagram | Meta's Instagram Reels video page gives 0 seconds to 15 minutes, 44-character primary text and a minimum width of 250 or 500 pixels; its Facebook Reels page gives no maximum length, 40 and 55 characters and no minimum size |
Download as a template: a transparent PNG or SVG for your editor.
What the other guides get wrong
Spec sheets print a maximum length for Facebook Reels video — 60 seconds in one, 30 in another — and give its size as 1080 × 1920 or “at least 500 × 888”. Meta's page says “No maximum limit.” and 1440 × 2560.
Source: Meta Ads Guide — video ads on Facebook Reels, as of ; the safe zone from Meta's help article on text overlays and the safe zone for ads on Facebook and Instagram, as of . Platforms revise specs without notice; check the source before you build a template on it.
Related reading
Check a file against this size in the free ad size checker, and see what Facebook’s buttons and captions cover in the safe zone checker. Terrads composes each placement for its own frame, instead of cropping one master down to it.